Premier Division · Friday, 21 August 2026 · 19:45. Our rating makes this 45% to go over 2.5 goals, so our lean is under. The Premier Division average is 47%.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 45% | 55% | Under |
| Over 3.5 goals | 23% | 77% | no pick |
| Both teams to score | 59% | 41% | Yes |
The result model puts Bohemians at 48%, the draw at 28% and Derry City at 24%, from expected goals of 1.37 and 0.88.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 2.00 | 47% | 45% | -2% |
| Under 2.5 goals | 1.80 | 53% | 55% | +2% |
| Both teams to score | 1.91 | 50% | 59% | +9% |
Implied percentages have the bookmaker's margin removed, so they add to 100 and can be compared with our rating directly. Edge is simply the gap between the two. A positive edge means our model thinks the outcome is likelier than the price suggests — it is not a tip, and a high probability with a negative edge is a poor bet however safe it looks. Prices are a pre-match snapshot from a single bookmaker and move constantly.
Match odds: Bohemians 1.83, draw 3.40, Derry City 3.80.
The league sets the starting point. Premier Division has produced over 2.5 goals in 47% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Bohemians have 15 in 27 this season (6 of 13 at home), Derry City 13 in 27 (6 of 13 away). Those records are pulled toward the league rate with the weight of about 32 matches — enough that two or three unusual games cannot swing a rating — giving 50% and 47%.
The mix. Weighted 40% home side, 40% away side and 20% league — the split that beat every alternative across 30,582 matches of testing — that gives 49%.
Head to head. These sides have met 12 times in three years, producing over 2.5 goals in 42%. That nudges the number 10% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 48%.
Goal expectation. Separately a Poisson model built from attack and defence strength — using real expected-goals data where the league has it — puts this match at 39%, from expected goals of 1.37 for Bohemians and 0.88 for Derry City. Folding in 30% of that view gives 45%.
This breakdown is generated from the same inputs the rating uses, so it cannot describe a calculation we did not perform. The full model is set out in the methodology.
| Team | Games | O2.5 | O3.5 | BTTS |
|---|---|---|---|---|
| Bohemians | 27 | 56% | 33% | 63% |
| Derry City | 27 | 48% | 26% | 63% |
More: Bohemians season stats · Derry City season stats · Premier Division table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.